Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual condado teve 915 eleitores de terceiros?
 ###Tabelas: CREATE TABLE air_movement_table_-_mission_albany (air_movement_table_-_mission_albany_id AUTO_INCREMENT PRIMARY KEY, Serial VARCHAR, Airborne Unit VARCHAR, Troop carrier Group VARCHAR, # of C-47s INT, UK Base VARCHAR, Drop Zone VARCHAR, Drop Zone Time INT) CREATE TABLE by_county (by_county_id AUTO_INCREMENT PRIMARY KEY, County VARCHAR, Obama % VARCHAR, Obama # INT, McCain % VARCHAR, McCain # INT, Others % VARCHAR, Others # INT) CREATE TABLE barangays_districts (barangays_districts_id AUTO_INCREMENT PRIMARY KEY, Barangay VARCHAR, District VARCHAR, Population (May 1, 2000) INT, Population (August 1, 2007) INT, Population (May 1, 2010) VARCHAR) CREATE TABLE list_of_the_most_populous_us_counties_sorted_according_to_the_mid-2011_official_estimate_by_the_uscb (list_of_the_most_populous_us_counties_sorted_according_to_the_mid-2011_official_estimate_by_the_uscb_id AUTO_INCREMENT PRIMARY KEY, Rank VARCHAR, County VARCHAR, State VARCHAR, Land area (km²) VARCHAR, Land area (mi²) VARCHAR, April 1, 2010 census VARCHAR, April 1, 2010 density (/km²) VARCHAR, April 1, 2010 density (/mi²) VARCHAR, July 1, 2010 official estimate VARCHAR, July 1, 2010 density (/km²) VARCHAR, July 1, 2010 density (/mi²) VARCHAR, July 1, 2011 official estimate VARCHAR, July 1, 2011 density (/km²) VARCHAR, July 1, 2011 density (/mi²) VARCHAR, Mid-2010 to mid-2011 change (Absolute) VARCHAR, Mid-2010 to mid-2011 change (%) VARCHAR, County seat or courthouse VARCHAR) CREATE TABLE 1971_isle_of_man_junior_tt_350cc_final_standings (1971_isle_of_man_junior_tt_350cc_final_standings_id AUTO_INCREMENT PRIMARY KEY, Place INT, Rider VARCHAR, Country VARCHAR, Machine VARCHAR, Speed VARCHAR, Time VARCHAR, Points INT)  
SELECT County FROM by_county WHERE Others # = 915